Xpra: Ticket #2660: Add display number on remote windows

Change appname on ${ip} to appname on ${ip}/:${DISPLAY}.

When having windows from multiple displays on the same server, it's hard to decide what needs to shutdown.



Fri, 20 Mar 2020 13:44:00 GMT - Antoine Martin: status changed; resolution set

Use:

xpra attach --title="@title@ on @hostname@/@server-display@" ...

Sat, 23 Jan 2021 05:57:22 GMT - migration script:

this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/2660